Means for operating switch mechanisms.



R. A. SCHOENBERG.

MEANS Fon OPERATING SWITCH MECHAN'ISM'S.

APPLICATION FILED AUG-I3 1915- Patented June 12, 1917.

3 SHEETS-SHEET I.

f@ WQ.

R. A. SCHOENBERG. MEANS FOR OPERATING SWITCH MECHANISMS.

APPLICATION FILED AUG.13, 1915.

3 SHEETS-SHEET 2.

R. A.ASCH0ENBERG. MEANS FOR OPERATING SWITCH MECHANISMS.

APPLICATION FILED AUGJS. |915.

Patented J une 12, 1917.

LQQQMS 3 SHEETS-SHEET 3.

RALPH A.. SCHENBERG, OF NEW YORK, lll'. Y.

' MEANS FOR'OPERATING SWITCH MECHNSMS.

Specification of Letters Patent.

Patented l une l2, tgl?.

Application ledl August 13, 1915. Serial No. 45,408.

To all whom t may concern:

Beit known that I, RALPH A. SCHOEN- BERG, of New' York, in the county and State oi New York, have invented new and useful Means toi" Operating SwitchMechanisms, of which the following is a specification.

My invention relates to means tor operating switch mechanisms and one feature thereof consists, in using a buckling spring as a part of the switch mechanism.

Another feature consists in a rocking or. oscillating circuit controlling member operated by a longitudinally movable support which in the forms shown is a threaded shell to receive a lamp or attachment plug.

In the accompanyin drawings:

Figure 1 is a central Fon itudi-nal sectional view of a socket for incan escent lamps embodying one form of my invention.

Fig. 2 is a side elevation of the body and screw shell of the socket shown in Fig. l.

Fig. 3 is a sectional detail.

Fig. 4.- is a plan view of the body of the socket shown vin Fig.' l.

Fig. 5 is a central longitudinal sectional view of a lamp socket embodying another form of my invention.

Fig. 46 is a side elevation of the body and screw shell of the socket shown in Fig. 5. V

Fig. 7 is a section on line 7-7 ot Fig. 6.

Fig. 8 is a section on line 8--8 ot Fig. 5.

Fig. 9l is a central longitudinal sectional view of a lamp socket embodying another form of my invention.

Fig. 10 is a side elevation of the body of the lamp socket shown in Fig. l9.'

Fig. 1l is a plan view ot the body ot the lamp socket shown lin Fig. 9.

Fig. 12 is a perspective view ot the rocker of the lamp .socket shown in Fig. 9.

Figs. 13 andle are details showing moditications.

C is immovably held in positionwithin the lining B by reason of its close lit with said l1ning and by means of two annular shoulders c3 and c4 provided upon the inside of v -vided uponl the outer side of body C and being made near one end with a longitudinaly slot c6 to receive a stud c7 projecting outwardly from a contact F.

The contact F also occupies the groove c5 and is always in engagement with the contact E, said Contact F being made with a lateral extension near its lower end that is clamped immovably to the body C by means of the bolt c. At its upper end the contact F is also made with an arm extending laten ally into a chamber c8 provided within the body C. Within this chamber and alongside of the arm f is another arm g which is the laterally bent end ot a contact G occupying a recess e9 formed upon the outside of body C and clamped withinsaid recess by the bolt c.

'Fhe two arms 'f and g constitute two tei minals which coperate with a movable bridge piece H herein shown as a yoke pivotally supported by a pintle l on. which the yoke is loosely mounted. vrFhe pintle l is supported nearits ends by a pair et arms z' integral with a sleeve i" pocketed within a chamber e9 that is provided within body C and which communicates with the chamber o8. rFhe bolts c and c2 mayfserve tov clamp the two parts of the body D firmly against the sleeve z" so that the latter is held against displacement ,within the body.

Within the lowerlend ot the sleeve i is mounted a plunger '52 voi insulating material such as hard rubber, and between this plunger and aninturned flange at the upper end of the sleeve is arranged a light spring 3 which normally holds the plunger '52 at the lower end of the sleeve with the ends of a pin it carried -by the plunger in engagement with the lower ends of two slots @"5 formed in sleeve rlhe screw shell D is made with the usual center contact cl and this contact is always in engagement with a spring contact K tastened to the body C by means of the bolt 02, with its free end arranged between the lower end of the plunger 2 and center contact al.

The bolts 0 and c2 serve as binding posts to which the lead wires L and M are secured.

Rigidly secured to the pintle l between the two arms' of fbridge yoke H is a rocker N formed with a switch point n and two shoulders n and n2, one at each side of the base of the switch point. The switch point n and the two shoulders n and u2 coperate with a spring blade 0 whose lower end is rigidly secured to the inner end of the plunger 2. So far as the function of this blade O is concerned said blade is rigid so far as endwise pressure upon it is concerned, but it islaterally flexible at its upper end, the lower end of said blade-being held'rigidly against lateral play by the plunger. The pintle l also has rigidly secured to it the upper end of a flat buckling spring P whose lower end is seated at the bottom of a V- shaped pocket 010 communicating with the chamber cs, said spring being slightly greater in length than the distance between pintle I and the bottom of thek pocket so that it normally occupies a bowed positiony yieldingly holding one arm of the rocker N against one or the other of a pair of stop shoulders'o11 and o provided on the body Y C. rl`he rocker N carries a laterally projecting pin n which operates a slot i formed in one arm of the bridge yoke H so Athat said end of slot z, so that when said spring does yoke and rocker are connected by said-pin and slot but with provision for limited relative swinging movement.

ln the drawings the bridge .yoke H is shown out of engagement ywith the arms f and g. yWhen, however, it is desired to electrically connect the two arms f and g inward manual pressure is exerted upon the lamp (not shown) held by screw shell D and the inward movement of said shell acts through center Contact d and spring K to shove plunger 2 and spring blade O toward rocker N against the pressure of the spring 3. rlhe free end of spring blade O strikes the switch point P and the latter deHects the end of theblade sidewise against the shoulder n after which continud endwise movement of the blade swings rocker N and pintle `l in a clock-wise direction against the `yielding resistance of the buckling spring l.

As therockery N is thus shifted the pin n travels along the slot t and as soon asI spring O' has beeny buckled to the point where its middle portion is about to spring or snap toward the oppositeside ofthe body, the pin n comes into. engagement with the upper snap across toward the opposite side of the body ,it swings the rocker N beyond the position to which it was moved by the blade O and against stepl shoulder cl2. During this Laaaaao f and g. This closes the circuit through the' lamp held by screw shell D, said circuit being traced as follows -from lead wire L through contact Gr, arm g, bridge yoke H, contact F, contact E and screw shell D to and through the lamp and from the latter through center contact a?, spring contact K and bolt c2 to the other lead wire M. As soon 'as pressure is removed from the lamp the spring contact K shoves the screw shell D and lamp back to their outermost positions again while the spring 3 returns plunger 2 to its normal position at the lower end of its sleeve. As will be clear the switch point n is shifted to the opposite side of the path of the free end of the spring blade when rocker N is thus operated.

`Vlhen it is desired to open the circuit of the lamp at f-g said lamp is again pushed inwardly and this time the switch point n ing free of bridge yoke H until the spring l?y is about to snap toward the opposite side ofthe body. When said spring makes this snap movement the'pin n acting through the end of slot 7L' swings the bridge yoke H out of engagement with larms f and g.

'lhe pin and slot connection 06-07 serves to limit the movement of the screw shell toward and from body' C.

ln Figs. 9, 10, ll and 12 l have shown another form of my invention comprising a rocker l which directly controls the contact arms f and g, and which is itself operated and controlled by a singlel coiled spring O". rlhe rocker N is made from a single piece of sheet metal and comprises two semicircularside pieces 'n3 united byk a cross-bar n4 at each end of which is a dependingv wing as, said wings and cross-bar forming a pocket to receive a ball o attached to one end of the spring 0. The opposite end of rthe springy 0 is seated in a' pocket t7 f slidably mounted 1n the body C. At itsy lower end the plunger i rests against a l spring contact K that is connected with one of the lead wires and adapted to directly `engage the center contact or terminal of the lamp. 'llhe spring 0 holds the dat side 'of the rocker N against one or vthe other of a pair of adjoining relatively oblique walls C13 and 014 bordering the pocket Within which the rocker is arranged, said rocker, when operated as presently to be described,

swinging or rocking on the apex, 015 at the junction of said walls toward and from 'the contact arms f and g. Normally the springs 0 and K hold the screw shell D at the 17 fastened to the outside of block 1 by thev bolt 3. With the spring bow 12 occupying l limit of its outward movement.

rlhe pocket within which the ball o is arranged is wider than the diameter of said ball so that when the rocker is resting against one or the other of the .walls 018 or c the spring U occupies an oblique position with its ball o at one end of said pocket'. 1n

the drawings the rocker N is shownout of engagement with the contact arms f and g but when it is desired to close the circuit through the lamp the latter is pushed inwardly and acts through contact K and plunger d to shove the lower end of the spring O inwardly on a line that is odset relatively to the ball o' with theresult that spring 0 is bowed toward the left. This bowing ot the spring is due to the peculiar manner in which 1t is thusV compressed causing its upper end to exert a sidewise i pressure on the rocker which tilts the latter on the apex 015 toward the arms f. and g. AS soon'as the bar at begins to incline 1n a direction opposite to that shown theball o slides quickly to the opposite end of the pocket within which it is located, passing from one side of the apex 015 to the opposite side and giving a quick or snappy movement to the latter part of the travel of the rocker. When itis desired to open the circuit of the lamp the latter is again pressed inwardly and the spring 0 acts as before only in the opposite direction.

1n the torm of my invention shown 1n Figs. 5 to 3, inclusive, the body of the socket comprises two blocks of porcelain 1 and 2 fastened together by means ot two bolts 3 and d. The meeting faces ot the two blocks 1 and 2 are formed with longitudinal registerin groeven` 5 within which is an endwise movale stem 6 having its lower end fastened to but insulated from a screw shell 7 adapted to receive within it the threaded base of an incandescent lamp or ot a coupling member. rlhe lower end ot the stem 6 extending through the end wall 3 ot shell 7 and its extremity 9, which is centrally disposed, serves as a teinal to engage the center contact of the lamp or coupling member. f.

The stem 6 is made with a reduced portion 10 extending through a perforation 11 provided near the middle of a spring lhow 12 and at one end of this reduced portion 10 is an annular shoulder 13 while at the opposite end thereof is an annular shoulder "it, r1`he spring bow 12 is pocketed within registered recessesll provided in the two blocks 1 and 2 and the 'ends of 4said spring bow are free to rock or pivot in the tI-shaped sockets 15 at the ends of the recesses 1d.

. The s ring bow 12 is formed with a laterally projecting arm 16 which constitutes the movable contact of they switch, and this contact 16 coperates with a stationary contact ing through the t-wo sockets 15, the movablecontact 16 slides up onto `the stationary contact 17 and closes the circuit. When the /spring bow 12 is sprung downward past the dead center the movable lcontact 16 is carriedl out of engagement with the stationary contact 17 and the circuit is opened. The spring bow 12 may be sprung back and forth across the dead center line by moving the device connected with screwshell 7 toward and from the body made up or thetwo 'blocks .1 and 2, the shoulder le shoving the middle of the spring bow 12 past thedead center when screwvshell- 7 is moved toward the body and the shoulder 13 shoving the middle portion of the spring bow 12 past the dead center when the screw shell 7 is moved in the opposite direction. The two shoulders 13 and 14 are separated so that when the screw shell 7 is pulled outward to open .the circuit the shoulder 13 will push the' middle portion of the spring bow 12 just past the dead center line whereupon the spring bow will'sna forward along the reduced portion 10 ot stem 6 thereby producing a quick break between the contacts 16 and 17.

To the inner end of the screw shell 7 is fastened a contact 18 bearing at its' inner end upon a contact 19 fastened by means of the bolt t to the outside block 2. The contact 19 carries a pin 20 occupying a slot 21 provided through one end ot the contact 18. This pin and slot connection between the contacts 18 and 19 interlocks the screw shell 7 and the body of the device with provision for limited relative movement.

@ne of the lead wires 22 is fastened to the bolt 3 while the other lead wire 23 is ltasln Fig. 13 l have showna modication Y having a flat direct acting buckling spring O2 seated at its lower end 1n a pocket s pro-p vided .at the inner end of the plunger e and seated at its upperend in a if-shaped pocket ne provided on a bridging rocker N2. This construction has the same mode of operation as that shown in Fig. 5, except that the upper end ofthe spring 02 does not slide sidewise within the pocket n".

ln Fig. 14 l have shown a modification which yis the same as shown in Fig. except that the lower end of the buckllng rocker operating spring O has attached to it a ball o seated in a pocket 9 formed upon the inner end of the plunger 'im said pocket being wider than the diameter of the ball. When the plunger 10 is forced inwardly'the buckling of thefspring 03 operates the rocker as before but when the upper end of the Spring Us slides laterally in one direction the ball 0"`at the lower end thereoic` will slide laterally in the'opposite direction. rlhis provides for greater normal Obliquity of the spring @3 than is the case with the spring 0 thereby giving greater and more definite buckling edects.

lll/hat l-claim is: l

l. A device of the character described comprising. a pivotally supported rocker made with a switch point and with two shoulders, one at each side of said point; a spring connected with said rocker; an endwise movable laterally flexible blade cop eratingvvvith the switch point and shoulders of said rocker, a reciprocating carrier for said blade; a pair of contacts and a .movable supported bridge member connected with y and operated by said rocker.

2. A device or the character described comprising a pivotally 'supported rocker made with a Switch point and with tvvo shoulders, one yat each side loli said switch point; a buckling spring connected with said rocker; an endwise movable laterally dexible blade coperating with the switch point and shoulders of said rocker; a body;

a pair of contacts mounted on said body; a movably supported bridge member conneaaeao nected with` and operated by said rocker, and a lamp holding screw shell connected with one of said contacts, the other contact being adapted to be connected with one of the lead wires.

3. A device of the character described comprising a pivotally supported rocker made with a switch point and with two 4. A device of ther character described' comprising a ypivotally supported rocker made with a switch point and two shoulders,

one at eachpside of said point; a bucklingspring connected with said rocker; an endc wise laterally movable Hexible blade coperating with the switch point and shoulders of said rocker; a pair of contacts; a movably supported bridge member connected with said rocker with provision for limited relative movement, and a lamp holder longitudinally movable to operate said blade, al`

ternate inward movements of said holder acting through said blade to shift the rocker in one direction and theother inward movements of said holder acting through said blade to shift said rocker in the opposite direction. f*

naaien a. sotterranee. 

